Air conditioner

Abstract

An air conditioner is provided. The air conditioner includes: an indoor device installed at indoor; an outdoor device connected to the indoor device using a refrigerant pipe; a ventilation unit for exchanging heat of outdoor air and indoor air while ventilating indoor air and outdoor air; and a guidance duct for communicating the ventilation unit and an air inhalation portion of the outdoor device in order to guide indoor air exhausted from the ventilation unit to an air inhalation portion faulted in the outdoor device. Therefore, the number of ventilation holes to form in an outer wall of a building can be minimized, a construction cost can be reduced, and performance of the air conditioner can be improved.

What is claimed is: 
     
       1. An air conditioner comprising:
 an indoor device installed at indoor; 
 an outdoor device connected to the indoor device using a refrigerant pipe; 
 a ventilation unit for exchanging heat of outdoor air and indoor air while ventilating indoor air and outdoor air; and 
 a guidance duct for communicating the ventilation unit and a plurality of air inhalation portions of the outdoor device in order to guide indoor air exhausted from the ventilation unit to the air inhalation portion formed in the outdoor device, 
 wherein the ventilation unit comprises: 
 a ventilation heat exchanger for exchanging heat of indoor air and outdoor air; 
 a ventilation fan for sending indoor air to the outdoor device after passing through the ventilation heat exchanger and for sending outdoor air to indoor after passing through the ventilation heat exchanger; and 
 a ventilation case having the ventilation heat exchanger and the ventilation fan therein, 
 wherein the ventilation case has an outdoor air inhalation duct connection part to which an outdoor air inhalation duct is connected, an outdoor air exhaust duct connection part to which an outdoor air exhaust duct is connected, an indoor air inhalation duct connection part to which an indoor air inhalation duct is connected, and a plurality of guidance duct connection parts to which the guidance duct is connected, 
 wherein the guidance duct connects with one of the plurality of guidance duct connection parts, 
 wherein the outdoor device comprises a base, left and right side panels installed at an upper side of the base, and a top panel installed at an upper side of the left and right side panels, 
 at least one of the left and right side panels includes a plurality of openings forming the plurality of air inhalation portions formed at different heights, and 
 the guidance duct has a fastening portion wherein the guidance duct is adjusted to fit any one of the plurality of air inhalation portions. 
 
     
     
       2. The air conditioner of  claim 1 , wherein the plurality of guidance duct connection parts comprise:
 a first guidance duct connection part formed in one of a front surface and a rear surface of the ventilation unit; and 
 a second guidance duct connection part formed in one of a left surface and a right surface of the ventilation unit. 
 
     
     
       3. The air conditioner of  claim 1 , further comprising stoppers for blocking a guidance duct connection part with which the guidance duct is not communicated among the plurality of guidance duct connection parts. 
     
     
       4. The air conditioner of  claim 1 , further comprising a damper for opening and closing the guidance duct. 
     
     
       5. The air conditioner of  claim 1 , wherein the guidance duct comprises:
 a connection duct installed in the outdoor device to be opposite to a portion of the air inhalation portion; and 
 an exhaust duct for connecting the ventilation unit and the connection duct. 
 
     
     
       6. The air conditioner of  claim 5 , wherein the connection duct is made of a material harder than that of the exhaust duct. 
     
     
       7. The air conditioner of  claim 5 , wherein the connection duct comprises:
 an exhaust duct communication portion communicated with the exhaust duct; 
 a fastening portion fastened to the outdoor device; 
 an extension portion formed between the exhaust duct communication portion and the fastening portion and having a flow path enlarging as advancing toward the air inhalation portion. 
 
     
     
       8. The air conditioner of  claim 5 , wherein the exhaust duct is formed to extend and retract or bend. 
     
     
       9. The air conditioner of  claim 1 , wherein the fastening portion has a fastening hole for fastening to the outdoor device using a screw,
 at least one of the left and right side panels has a fastening hole around the opening, and 
 the screw is fastened to the fastening hole formed around the opening by penetrating a fastening hole of the fastening portion. 
 
     
     
       10. The air conditioner of  claim 1 , wherein the fastening portion comprises a magnet to be detached with a magnetic force to the outdoor device, and
 the magnet is detached to a periphery of the opening with a magnetic force. 
 
     
     
       11. The air conditioner of  claim 1 , wherein the fastening portion comprises a hook inserted into the opening to be latched. 
     
     
       12. The air conditioner of  claim 1 , wherein in the ventilation heat exchanger, an indoor air flow path for passing through indoor air and an outdoor air flow path for passing through outdoor air are partitioned with a heat transfer member interposed therebetween. 
     
     
       13. The air conditioner of  claim 1 , wherein the ventilation unit is separated from the outdoor device at an upper side of the outdoor device.